Bad Darryl--Over the years, I've bought more used than new firearms. Guns aren't that complicated a machine--You can check them out thoroughly for wear & tear before offering money for them.They aren't like a car where there could be hidden wear you can't see or check.
As for "small annoying issues," if it's really a SMALL issue, then what the heck, and if it's fixable, you can fix it, and if it really is more than a small issue, just don't buy that particular one.
And some new firearms come with "small annoying issues," too, and the same thing applies.
But, each to their own. If buying new is really what makes you happy, then go for it--Who am I to dictate taste to you?
God Bless America